Fifty
From BiblePortal Wikipedia
Vine's Expository Dictionary of NT Words [1]
1: Πεντήκοντα (Strong'S #4004 — Adjective — pentekonta — pen-tay'-kon-tah )
is found in Luke 7:41; 16:6; John 8:57; 21:11; Acts 13:20; in Mark 6:40 with kata (in the most authentic mss.), according to, "by fifties;" in Luke 9:14 , with ana, "up," used distributively, "fifty each," RV (Luke adds hosei, "about").
Webster's Dictionary [2]
(1): ( n.) A symbol representing fifty units, as 50, or l.
(2): ( a.) Five times ten; as, fifty men.
(3): ( n.) The sum of five tens; fifty units or objects.
King James Dictionary [3]
FIF'TY, a.
Five tens five times ten as fifty men. It may be used as a noun in the plural.
And they sat down by fifties. Mark 6 .
